136142997 has 8 divisors (see below), whose sum is σ = 184080960. Its totient is φ = 89483520.

The previous prime is 136142947. The next prime is 136143011. The reversal of 136142997 is 799241631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 136142997 - 2⁶ = 136142933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136142947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319372 + ... + 319797.

It is an arithmetic number, because the mean of its divisors is an integer number (23010120).

Almost surely, 2^136142997 is an apocalyptic number.

It is an amenable number.

136142997 is a deficient number, since it is larger than the sum of its proper divisors (47937963).

136142997 is an equidigital number, since it uses as much as digits as its factorization.

136142997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639243.

The product of its digits is 81648, while the sum is 42.

The square root of 136142997 is about 11668.0331247387. The cubic root of 136142997 is about 514.4364930147.

The spelling of 136142997 in words is "one hundred thirty-six million, one hundred forty-two thousand, nine hundred ninety-seven".